US11813395B2 - Catheter configured for use with negative pressure and system comprising same - Google Patents
Catheter configured for use with negative pressure and system comprising same Download PDFInfo
- Publication number
- US11813395B2 US11813395B2 US16/950,417 US202016950417A US11813395B2 US 11813395 B2 US11813395 B2 US 11813395B2 US 202016950417 A US202016950417 A US 202016950417A US 11813395 B2 US11813395 B2 US 11813395B2
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- United States
- Prior art keywords
- negative pressure
- external catheter
- outlet
- catheter
- pressure source
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Links
- 210000003899 penis Anatomy 0.000 claims abstract description 18
- 238000000034 method Methods 0.000 claims description 28
- 210000002700 urine Anatomy 0.000 claims description 19
- 239000000463 material Substances 0.000 claims description 9
- 238000004891 communication Methods 0.000 claims description 8
- 229920000126 latex Polymers 0.000 claims description 4
- 239000004816 latex Substances 0.000 claims description 4
- 229920001296 polysiloxane Polymers 0.000 claims description 4
- 229920002635 polyurethane Polymers 0.000 claims description 4
- 239000004814 polyurethane Substances 0.000 claims description 4
- 230000007794 irritation Effects 0.000 claims description 3
- 230000008878 coupling Effects 0.000 claims 1
- 238000010168 coupling process Methods 0.000 claims 1
- 238000005859 coupling reaction Methods 0.000 claims 1
- 239000012530 fluid Substances 0.000 description 6
- 230000005484 gravity Effects 0.000 description 5
- 208000019206 urinary tract infection Diseases 0.000 description 5
- 206010046543 Urinary incontinence Diseases 0.000 description 4
- 230000008901 benefit Effects 0.000 description 4
- 230000002485 urinary effect Effects 0.000 description 4
- 239000000853 adhesive Substances 0.000 description 3
- 230000001070 adhesive effect Effects 0.000 description 3
- 238000012986 modification Methods 0.000 description 3
- 230000004048 modification Effects 0.000 description 3
- 229920000642 polymer Polymers 0.000 description 3
- 230000004888 barrier function Effects 0.000 description 2
- 239000012620 biological material Substances 0.000 description 2
- 230000002459 sustained effect Effects 0.000 description 2
- 208000026741 Penis disease Diseases 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 201000010099 disease Diseases 0.000 description 1
- 208000037265 diseases, disorders, signs and symptoms Diseases 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 230000027939 micturition Effects 0.000 description 1
- 230000008520 organization Effects 0.000 description 1
- 238000011176 pooling Methods 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 230000000717 retained effect Effects 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 208000017520 skin disease Diseases 0.000 description 1
- 210000003708 urethra Anatomy 0.000 description 1
Images
Classifications
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M1/00—Suction or pumping devices for medical purposes; Devices for carrying-off, for treatment of, or for carrying-over, body-liquids; Drainage systems
- A61M1/84—Drainage tubes; Aspiration tips
- A61M1/87—Details of the aspiration tip, not otherwise provided for
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M1/00—Suction or pumping devices for medical purposes; Devices for carrying-off, for treatment of, or for carrying-over, body-liquids; Drainage systems
- A61M1/90—Negative pressure wound therapy devices, i.e. devices for applying suction to a wound to promote healing, e.g. including a vacuum dressing
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
- A61F5/00—Orthopaedic methods or devices for non-surgical treatment of bones or joints; Nursing devices; Anti-rape devices
- A61F5/44—Devices worn by the patient for reception of urine, faeces, catamenial or other discharge; Portable urination aids; Colostomy devices
- A61F5/4404—Details or parts
- A61F5/4405—Valves or valve arrangements specially adapted therefor ; Fluid inlets or outlets
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
- A61F5/00—Orthopaedic methods or devices for non-surgical treatment of bones or joints; Nursing devices; Anti-rape devices
- A61F5/44—Devices worn by the patient for reception of urine, faeces, catamenial or other discharge; Portable urination aids; Colostomy devices
- A61F5/443—Devices worn by the patient for reception of urine, faeces, catamenial or other discharge; Portable urination aids; Colostomy devices having adhesive seals for securing to the body, e.g. of hydrocolloid type, e.g. gels, starches, karaya gums
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
- A61F5/00—Orthopaedic methods or devices for non-surgical treatment of bones or joints; Nursing devices; Anti-rape devices
- A61F5/44—Devices worn by the patient for reception of urine, faeces, catamenial or other discharge; Portable urination aids; Colostomy devices
- A61F5/451—Genital or anal receptacles
- A61F5/453—Genital or anal receptacles for collecting urine or other discharge from male member
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M1/00—Suction or pumping devices for medical purposes; Devices for carrying-off, for treatment of, or for carrying-over, body-liquids; Drainage systems
- A61M1/71—Suction drainage systems
- A61M1/74—Suction control
- A61M1/743—Suction control by changing the cross-section of the line, e.g. flow regulating valves
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M2202/00—Special media to be introduced, removed or treated
- A61M2202/04—Liquids
- A61M2202/0496—Urine
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M2205/00—General characteristics of the apparatus
- A61M2205/02—General characteristics of the apparatus characterised by a particular materials
- A61M2205/0216—Materials providing elastic properties, e.g. for facilitating deformation and avoid breaking
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M2210/00—Anatomical parts of the body
- A61M2210/16—Male reproductive, genital organs
- A61M2210/167—Penis
Definitions
- an external catheter system having a negative pressure source.
- the system can comprise an external catheter comprising an engagement portion that is configured to receive and sealingly engage at least a portion of a penis of a user and an outlet.
- the system can further comprise a negative pressure source.
- a conduit can couple the negative pressure source to the external catheter. At least one of the external catheter and the conduit can comprise a portion that, upon application of a negative pressure by the negative pressure source, is configured to collapse to provide a pressure drop between the negative pressure source and the engagement portion of the external catheter.
- the conduit can comprises a valve comprising an inlet, an outlet, and a hollow body in communication with the inlet and the outlet of the valve.
- the hollow body can be configured to collapse upon itself to cause a pressure drop between the inlet and the outlet.
- the conduit can further comprise a length of tubing in communication with the outlet and the negative pressure source.
- the portion that is configured to collapse can comprise a hollow body of the valve.
- An apparatus can comprise an engagement portion that is configured to receive and sealingly engage at least a portion of a penis of a user, an outlet, and a collapsible portion between the engagement portion and the outlet.
- the collapsible portion can be configured to collapse to provide a pressure drop between the outlet and the engagement portion.
- FIG. 1 depicts a prior art system comprising an external (urine) catheter.
- FIG. 2 depicts an external catheter system in accordance with embodiments disclosed herein, showing when the user is not currently urinating.
- FIG. 4 A depicts another embodiment of an external catheter system comprising a valve in the conduit.
- FIG. 4 B depicts a close-up of the valve of FIG. 4 A .
- FIG. 5 illustrates a cross section of a collapsible portion of an external catheter.
- FIG. 6 is a schematic diagram of a system in accordance with embodiments disclosed herein.
- FIG. 7 is a perspective view of an external catheter in accordance with embodiments disclosed herein.
- FIG. 8 is an exemplary cross sectional view of the valve as in FIGS. 4 A- 4 B (taken in a plane perpendicular to the direction of urine flow), with the valve shown in an open position.
- a connector can refer to one or more of such connectors, and so forth.
- the terms “optional” or “optionally” mean that the subsequently described event or circumstance may or may not occur, and that the description includes instances where said event or circumstance occurs and instances where it does not.
- the term “at least one of” is intended to be synonymous with “one or more of” For example, “at least one of A, B and C” explicitly includes only A, only B, only C, and combinations of each.
- Ranges can be expressed herein as from “about” one particular value, and/or to “about” another particular value. When such a range is expressed, another aspect includes from the one particular value and/or to the other particular value. Similarly, when values are expressed as approximations, by use of the antecedent “about,” it will be understood that the particular value forms another aspect. It will be further understood that the endpoints of each of the ranges are significant both in relation to the other endpoint, and independently of the other endpoint.
- a system 10 comprising an external catheter 100 and a conduit 200 .
- the external catheter 100 can comprise an engagement portion 102 that is configured to sealingly engage a penis 14 of a user.
- the engagement portion can be provided with various inner diameters in order to ensure a proper fit on the penis.
- a kit can comprise a plurality of external catheters 100 having different sizes (e.g., small, medium, intermedium, and large).
- an adhesive can assist in sealingly engaging the engagement portion 102 to the penis.
- the external catheter 100 can optionally comprise silicone, latex, polyurethane, elastomeric polymer, combinations thereof, or other suitable material(s).
- the external catheter 100 can optionally couple to the conduit 200 via tubing connections.
- the external catheter 100 can comprise a barbed male tube fitting 106 that can be received into an inlet end of the length of tubing 202 .
- the barbed male tube fitting 106 can define or at least partially define the outlet 104 of the external catheter 100 .
- the barbed male tube fitting 106 can comprise a material that is sufficiently rigid to be received and retained within the length of tubing 202 .
- various other types of tube fittings can be configured to couple the catheter 100 to the conduit 200 .
- the external catheter 100 and conduit 200 can be integrally formed or otherwise non-releasably coupled.
- the external catheter 100 can comprise a collapsible portion 108 that extends from the engagement portion 102 and away from the penis to or toward the outlet 104 and/or the male tube fitting 106 .
- the collapsible portion 108 of the external catheter 100 can be sufficiently flexible and/or elastic so that a pressure within the conduit 200 that is sufficiently less than an external room pressure can cause the collapsible portion 108 to collapse. Referring to FIG.
- the collapsible portion 108 can have a larger cross-sectional area (transverse to flow direction) than on opposite sides (relative to the flow direction) of the collapsible portion 108 .
- the larger cross-sectional area can allow the collapsible portion 108 to collapse upon itself.
- the collapsible portion 108 can collapse so that interior surfaces 110 of the collapsible portion engage (or nearly engage) each other to block (or reduce) flow therethrough, thereby causing a pressure drop between opposing ends of the collapsible portion.
- the collapsible portion can provide a pressure drop between the negative pressure source and the engagement portion of the external catheter.
- the pressure drop can reduce the negative pressure within the engagement portion of the external catheter (i.e. reduce the differential pressure between the external room pressure and the pressure within the engagement portion of the external catheter), thereby minimizing or eliminating tissue irritation or damage.
- the fluidly communicating portions 112 can be formed by the material properties (e.g., the flexibility, as a function of the elastic modulus and thickness of the external catheter material) of the catheter limiting the collapsible portion 108 to seal entirely. In some aspects, it is contemplated that the fluidly communicating portions 112 can be configured to maintain fluid communication so that no barrier is formed to trap urine within the engagement portion of the external condom, and, when the user begins urinating, the collapsible portion 108 more readily opens.
- the elastic modulus of the collapsible portion 108 can be between 10 kPa and 2000 kPa, or between 20 kPa and 1000 kPa, or about 20-50 kPa. In some optional aspects, the collapsible portion 108 can be configured to cause a pressure differential thereacross of about 50% (e.g., from ⁇ 200 mmHg to ⁇ 100 mmHg).
- the pressure from the urine can cause the collapsible portion 108 to open as shown in FIG. 3 .
- the negative pressure can cause the urine from the catheter to flow through the outlet 104 to remove the urine from the catheter.
- the negative pressure can automatically cause the collapsible portion 108 to collapse and reduce the negative pressure within the engagement portion of the catheter.
- the conduit 200 can comprise a valve 220 .
- the valve 220 can comprise an inlet 222 , an outlet 224 , and a hollow body 226 , comprising a collapsible portion 228 , with the hollow body 226 extending between the inlet 222 and the outlet 224 .
- the inlet 222 and outlet 224 can optionally comprise tube fittings that can couple, respectively, to the outlet 104 of the catheter 100 and an inlet of the tube 202 .
- the collapsible portion 228 of the hollow body 226 can be configured to operate as described with reference to the collapsible portion 108 of the external catheter 100 . That is, the walls can be flexible so that a pressure within the collapsible portion 228 of the hollow body 220 that is less than the external room pressure can cause the collapsible portion 228 to collapse, thereby causing a pressure differential between the inlet 222 and the outlet 224 .
- a negative pressure of less than 60 mmHg, or between 60 mmHg and 80 mmHg, or less than 100 mmHg can be sufficient to cause the collapsible portion 228 to collapse.
- the compressible portion 228 is not in contact with the skin of the user, a wider range of materials can be used than for the external catheter 100 .
- the compressible portion 228 can comprise silicone, latex, polyurethane, elastomeric polymer, combinations thereof, or other suitable polymer(s) or material(s).
- the collapsible portion 108 of the catheter 100 and the valve 220 of the conduit 200 can each close to collectively and cooperatively reduce the negative pressure within the engagement portion of the catheter.
- the system 10 can comprise a catheter 100 and a valve 220 .
- the catheter 100 can comprise a collapsible portion 108 .
- the collapsible portion 108 of the catheter 100 can cause a first pressure differential (e.g., 50%, or 100 mmHg), and the valve 220 can further cause a second pressure differential to further minimize the negative pressure applied to the penis.
- the catheter 100 and the valve 220 can substantially entirely or entirely reduce the negative pressure applied to the penis so that the pressure within the catheter 100 is equal or about equal to room pressure.
- the collapsible portion 108 of the catheter can be omitted or eliminated. That is, the catheter can be constructed without a collapsible portion, and the valve 220 can close to independently reduce the negative pressure within the engagement portion of the catheter.
- the valve 220 can be incorporated within the conduit of a conventional condom catheter or within a urinary incontinence pouch, such as, for example, a HOLLISTER 9873 urinary incontinence pouch (HOLLISTER INC.).
- the valve 220 can be, for example, modularly incorporated within the conventional condom catheter or urinary incontinence pouch. In this way, conventional urine systems can be adapted for use with negative pressure to draw urine away from the user. In various optional aspects, opposing ends of the valve 220 can be sufficiently rigid to sealingly receive tubing fittings (e.g., male barbs) to allow the valve 220 to be modularly coupled within a system 10 .
- tubing fittings e.g., male barbs
- the valve 220 can be configured to cause a pressure differential that is equal to, or substantially equal to, the negative pressure of the negative pressure source so that no or substantially no negative pressure is applied to the penis when the user is not urinating.
- the valve 220 can be configured to completely close off.
- the valve 220 can be formed having, in cross section (within a plane perpendicular to the flow of urine), a fish-shaped profile (e.g., with opposing arcuate surfaces), having pre-formed pinched opposing edges 250 to minimize or eliminate fluid communicating portions (as shown at 112 in FIG. 5 ) when closed.
- the pre-formed pinched edges 250 can be formed via various methods including using a mold shape with the pre-formed pinched edges 250 or by folding and adhering opposing sides of the valve at the inner edges of the valve.
- the collapsible portions of the catheter 100 and/or the valve 220 can provide automatic reduction of negative pressure against the skin of the user when the user is not urinating. Only when the system begins to fill with urine does/do the collapsible portion(s) of the catheter 100 and/or the valve 220 automatically open to reestablish fluid communication between the negative pressure source and the engagement portion of the catheter.
- the negative pressure source can provide negative pressure at up to about 200 mmHg.
- the negative pressure can be at least 60 mmHg, at least 80 mmHg, between 80 mmHg and 100 mmHg, between 100 mmHg and 120 mmHg, between 120 mmHg and 150 mmHg, between 150 mmHg and 200 mmHg, between 80 mmHg and 200 mmHg, between 100 mmHg and 200 mmHg, or greater than 200 mmHg.
- the negative pressure can be about 100 mmHg.
- the negative pressure can be sufficient to cause collapse of the collapsible portion of the catheter or a valve, as described herein.
- the collapsible portions of the catheter 100 and/or the valve 220 can substantially reduce the sustained negative pressure within the engagement portion of the catheter when the user is not urinating.
- the collapsible portion(s) can reduce the negative pressure by half (e.g., from 200 mmHg to 100 mmHg) or by at least 25% or at least 60%, or at least 80%, or about 100%.
- the collapsible portion(s) can reduce the negative pressure within the engagement portion to about 20 mmHg or about 40 mmHg or about 60 mmHg or about 80 mmHg.
- Embodiments disclosed herein can reduce or eliminate leaking common in conventional external catheters. In eliminating leaking, the embodiments disclosed herein can collect substantially all output urine and, thus, enable accurate measure of urinary output. Additionally, the removal of urine using negative pressure can prevent urine pooling against the penis of the user, thereby preventing urinary tract infections (UTIs).
- UTIs urinary tract infections
Abstract
Description
Claims (20)
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US16/950,417 US11813395B2 (en) | 2019-11-18 | 2020-11-17 | Catheter configured for use with negative pressure and system comprising same |
US18/484,617 US20240091429A1 (en) | 2019-11-18 | 2023-10-11 | Catheter Configured For Use With Negative Pressure And System Comprising Same |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
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US201962936886P | 2019-11-18 | 2019-11-18 | |
US16/950,417 US11813395B2 (en) | 2019-11-18 | 2020-11-17 | Catheter configured for use with negative pressure and system comprising same |
Related Child Applications (1)
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US18/484,617 Continuation US20240091429A1 (en) | 2019-11-18 | 2023-10-11 | Catheter Configured For Use With Negative Pressure And System Comprising Same |
Publications (2)
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US20210146023A1 US20210146023A1 (en) | 2021-05-20 |
US11813395B2 true US11813395B2 (en) | 2023-11-14 |
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US16/950,417 Active US11813395B2 (en) | 2019-11-18 | 2020-11-17 | Catheter configured for use with negative pressure and system comprising same |
US18/484,617 Pending US20240091429A1 (en) | 2019-11-18 | 2023-10-11 | Catheter Configured For Use With Negative Pressure And System Comprising Same |
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US18/484,617 Pending US20240091429A1 (en) | 2019-11-18 | 2023-10-11 | Catheter Configured For Use With Negative Pressure And System Comprising Same |
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- 2020-11-17 US US16/950,417 patent/US11813395B2/en active Active
-
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US3957054A (en) * | 1973-09-26 | 1976-05-18 | Mcfarlane Richard H | Surgical drainage tube |
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US4553968A (en) * | 1983-06-09 | 1985-11-19 | Glenna Komis | External male urinary catheter with garment |
US4713066A (en) * | 1986-03-20 | 1987-12-15 | Glenna Komis | External male urinary catheter with garment |
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US5662631A (en) * | 1996-08-13 | 1997-09-02 | Marx; Sherwood D. | Male external catheter assembly with vacuum retention |
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